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P0090moderate severityPowertrain

Fuel Pressure Regulator 1 Control Circuit

on 2015 Kia Forte 1.8L I4 · FWD

What this code means

The PCM detected a malfunction in the fuel pressure regulator control circuit.

Symptoms

  • Check Engine Light
  • Unstable fuel pressure
  • Poor running

Common causes

  • Faulty regulator solenoid
  • Wiring damage
  • PCM failure

Diagnostic steps

  1. Test solenoid resistance
  2. Check wiring
  3. Test PCM output

Repair notes

Replace regulator or repair wiring.

Other Powertrain codes on this vehicle

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